diff --git a/go1.15/src/cmd/compile/internal/types/type.go b/go1.15/src/cmd/compile/internal/types/type.go
index 3b7b31c5d60b4a65ddcf43a667fe888f4682596f..d9b6f472cb7da0c8719f85d40fa4b06cc0215825 100644
--- a/go1.15/src/cmd/compile/internal/types/type.go
+++ b/go1.15/src/cmd/compile/internal/types/type.go
@@ -117,8 +117,10 @@ var (
 // A Type represents a Go type.
 type Type struct {
 	// Extra contains extra etype-specific fields.
+	// Extra包含额外的特定于词组的字段。
 	// As an optimization, those etype-specific structs which contain exactly
 	// one pointer-shaped field are stored as values rather than pointers when possible.
+	// 作为一种优化，那些特定于etype的结构只包含一个指针形状的字段，尽可能将其存储为值而不是指针。
 	//
 	// TMAP: *Map
 	// TFORW: *Forward
@@ -340,12 +342,12 @@ type Slice struct {
 	Elem *Type // element type
 }
 
-// A Field represents a field in a struct or a method in an interface or
-// associated with a named type.
+// A Field represents a field in a struct or a method in an interface or associated with a named type.
+//  字段表示接口中的结构或方法中的字段，或与命名类型关联的字段。
 type Field struct {
 	flags bitset8
 
-	Embedded uint8 // embedded field
+	Embedded uint8 // embedded field -> 嵌入字段
 
 	Pos  src.XPos
 	Sym  *Sym
@@ -362,9 +364,9 @@ type Field struct {
 }
 
 const (
-	fieldIsDDD = 1 << iota // field is ... argument
-	fieldBroke             // broken field definition
-	fieldNointerface
+	fieldIsDDD       = 1 // field is ... argument
+	fieldBroke       = 2 // broken field definition
+	fieldNointerface = 4
 )
 
 func (f *Field) IsDDD() bool       { return f.flags&fieldIsDDD != 0 }